CAM Equations De-Mystified LA-UR
|
|
- Mervin Shelton
- 5 years ago
- Views:
Transcription
1 CAM Equations De-Mystified LA-UR Alan Justus Health Physics Measurement Group (RP-2) Radiation Instrumentation and Calibration eam (RIC) Presented at HPIC 2009 Annual Meeting U N C L A S S I F I ED Slide
2 erminology = fast or slow window time (as appropriate) in seconds = net Pu counts in most recent interval from to 0 = net Pu counts in previous interval from 2 to - Eff = detector alpha efficiency (4) Flow = sample flow rate (lpm) Vol = sampled volume (l) during (i.e., equals Flow * /60) K = value (i.e., now pci/l for Pu-239) Yield = isotope alpha yield (i.e.,.0 for Pu-239) λ = decay constant (i.e., ln(2)/half-life), note: equal to zero for long-lived 239Pu Cal = calibration constant of 6.66x0-4 determined by the chosen units Variance = measured fit variance of K = the sigma factor MeV = counts within Pu region due to tailing from Rn- and n-progeny. Slide 2
3 Equations for activity and exposure Equations for activity and exposure using the counts from the most recent interval (or window): Activity( dps) ( counts) (sec) Eff Yield where efficiency, eff, = counts/ dis, and yield = dis/ isotopic dis. Exposure( h) K Activity( dps) ( pci / l) Flow ( lpm) 2.22 where K = value (i.e., now pci/l for Pu-239) Slide 3
4 Equations for Concentration he concentration equation is based on the ISO Standard approach, utilizing the difference in counts between two adjacent counting intervals divided by the (t) 2. In our terminology, this would equate to ( 0 )/ 2. Concentration ) ( 2 Flow ( lpm) K 0 ( pci / l) Eff Yield Cal If the isotope is relatively short-lived, the activity (and hence count rate) sampled during the 0 count will on average due to decay yield only 0 * exp(-λ* ) during the count interval. Concentration ) ( 2 Flow ( ) 0 ( lpm) K ( pci / l) Eff Yield Cal Slide 4
5 Determinations for Peak Variance Often, a minimum detectable activity, MDA, is (mis)used as the minimum alarm level for the socalled dose alarm and is given by: MDA( dps) K Variance Eff Yield where the variance is taken from the least-squares fitting routine. his is not reliable, since is related to method of fit (i.e., grid search, gradient search, Marquardt), weighting factors chosen, degrees of freedom (i.e., exact number of free fitting parameters)! An alternate and more reliable determination of the variance is a hybrid approach utilizing both the fitted peaks and classic Poisson statistics. Contributing counts to the Pu region (i.e., 5.2 MeV) from the tails of the fitted Rn- and n-progeny peaks are determined. hese counts are and 7.69 from the Rn-progeny and 6.05 and 8.78 from the n-progeny. he variance in, the fitted Pu counts, is then given by: 2 2 ( ) Slide 5
6 Equations for Dose Alarm Level he alarm (or critical or decision) level, L C, in units of dps, used as the minimum alarm level for the so-called dose alarm is then given by: L C ( dps) K Eff Yield where the variance is taken from the hybrid approach above and the equivalency between the sigma factor, K, times σ netpu and k times σ 0 is utilized. he alternate decision level, L C, in units of -h, is, ignoring any uncertainty in flow rate, given by: L C ( h) K L C ( dps) ( pci / l) Flow ( lpm) 2.22 Slide 6
7 Equations for Concentration Alarm Level Although the equation for a most sensitive concentration alarm could be offered here, the reality is that concentration alarms are utilized not for routine monitoring but rather for hot job monitoring. he user-entered high-level alarm suffices here, just as a 5 mr/h alarm level would suffice in an alarming area monitor used for external dose protection. One never sets the alarm to 4.8 mr/h in order to achieve a 95% detection probability of 5.0 mr/h! Slide 7
Performance Characterization of A New Cam System M.J. Koskelo 1, J.C. Rodgers 2, D.C. Nelson 2, A.R. McFarland 3 and C.A. Ortiz 3
Performance Characterization of A New Cam System M.J. Koskelo 1, J.C. Rodgers 2, D.C. Nelson 2, A.R. McFarland 3 and C.A. Ortiz 3 1 CANBERRA Industries, Meriden, CT 06450 2 Los Alamos National Laboratory,
More informationARMUG New CAM Developments. Arran Morgan MSc Physicist
New CAM Developments Arran Morgan MSc Physicist Topics Particulate sampling considerations Alpha spectral analysis Concentration calculation Spectrum stabilisation Beta measurement Loose filter Bi detection
More informationApplication Note. The Continuous Air Monitoring (CAM) PIPS Detector Properties and Applications
Application Note The Continuous Air Monitoring (CAM) PIPS Detector Properties and Applications Introduction The increasing demand for safety in nuclear installations calls for continuous survey of airborne
More informationNew happenings in gamma spectroscopy data analysis Sylvie Ward Sales Support Specialist
New happenings in gamma spectroscopy data analysis Sylvie Ward Sales Support Specialist Genie-2000 Latest Features Cascade Summing Correction LACE (Line Activity Consistency Evaluator) Interactive Nuclide
More informationCOUNTING ERRORS AND STATISTICS RCT STUDY GUIDE Identify the five general types of radiation measurement errors.
LEARNING OBJECTIVES: 2.03.01 Identify the five general types of radiation measurement errors. 2.03.02 Describe the effect of each source of error on radiation measurements. 2.03.03 State the two purposes
More informationWM2018 Conference, March 18-22, 2018, Phoenix, Arizona, USA. PVT and LaBr3(Ce)-based Radon Express Analyzers 18164
PVT and LaBr3(Ce)-based Radon Express Analyzers 864 Vladislav Kondrashov *, Stephen Steranka* and Glenn Paulson** * RadComm Systems Corp. 293 Portland Dr, Oakville, Ontario L6H 5S4, CANADA ** Paulson and
More informationMultilayer Nuclear Track Detectors for Retrospective Radon Dosimetry
Multilayer Nuclear Track Detectors for Retrospective Radon Dosimetry V. V. Bastrikov 1, M. V. Zhukovsky 2 1 Experimental Physics Department, Ural State Technical University, Mira St., 19/5, 620002, Ekaterinburg,
More informationGross alpha and beta measurements by LSC in waters: advantages, problems and limitations. Maurizio Forte Arpa Lombardia
Gross alpha and beta measurements by LSC in waters: advantages, problems and limitations Maurizio Forte Arpa Lombardia Gross α/β by LSC in waters: quick and effective screening method, widely used in monitoring
More informationmeasuring radon? Notes In this lesson, we are going to talk about the units that we use to measure radon.
Lesson 4: What are the units for measuring radon? Lesson overview This lesson introduces the units used to measure radon. Lesson objectives By the end of this lesson, the learners will be able to: Identify
More informationIon Chamber. Radon Measurements. Theremino System Rev.1. Theremino System IonChamber_ENG Page 1
Ion Chamber Radon Measurements Theremino System Rev.1 Theremino System IonChamber_ENG Page 1 Table of Contents Misure con Camera a Ioni... 3 Theory... 3 Equipment... 3 Radon in Buildings - Rn 222... 4
More informationCALIBRATION OF INSTRUMENTS MEASURING RADON OVER A LARGE ACTIVITY RANGE. N. Michielsen, V. Voisin
Radon in the Living Environment, 011 CALIBRATION OF INSTRUMENTS MEASURING RADON OVER A LARGE ACTIVITY RANGE N. Michielsen, V. Voisin Institut de Protection et de Sûreté Nucléaire, Département de Prévention
More informationThe LSC Approach to Radon Counting in Air and Water
CHAPTER 32 The LSC Approach to Radon Counting in Air and Water Charles J. Passo, Jr. and James M. Floeckher INTRODUCTION Various methods exist to monitor 222Rn in air. There are seven commonly used types
More informationAir Filter Alpha Spectrometry Report
search this site Air Filter Alpha Spectrometry Report Navigation Latest News Realtime Air Monitoring Environmental Monitoring About RadWatch BRAWM Data (2011-2013) KelpWatch Frequently Asked Questions
More informationNatural Rock Sample Manual
Natural Rock Sample Manual Revision 2014-06-12 DURRIDGE Company Inc. 524 Boston Road Billerica, MA 01821 Tel: (978) 667-9556 Fax: (978) 667-9557 service@durridge.com www.durridge.com 2014, DURRIDGE Company
More informationGeorgia Institute of Technology. Radiation Detection & Protection (Day 3)
Georgia Institute of Technology The George W. Woodruff School of Mechanical Engineering Nuclear & Radiological Engineering/Medical Physics Program Ph.D. Qualifier Exam Spring Semester 2009 Your ID Code
More informationMichael G. Stabin. Radiation Protection and Dosimetry. An Introduction to Health Physics. 4) Springer
Michael G. Stabin Radiation Protection and Dosimetry An Introduction to Health Physics 4) Springer Table of Contents Preface Acknowledgments Chapter 1. Introduction to Health Physics 1 1.1 Definition of
More informationProblem Solving in Preparation for the NRRPT Exam. David Waite, Ph.D. James Mayberry, Ph.D.
Problem Solving in Preparation for the NRRPT Exam David Waite, Ph.D. James Mayberry, Ph.D. Latest Revision February 2013 Disclaimer The problems exhibited in this book are similar to the ones on the NRRPT
More informationB. Tucker Shaw Environmental & Infrastructure 11 Northeastern Boulevard Salem, NH 03079
The Use of Uncertainties in Determination of Measurement Variance - 11118 B. Tucker Shaw Environmental & Infrastructure 11 Northeastern Boulevard Salem, NH 03079 D. Hays Unites States Army Corps of Engineers
More informationIGCSE Physics 0625 notes: unit 5 Atomic Physics: Revised on 01 December
IGCSE Physics 0625 notes: unit 5 Atomic Physics: Revised on 01 December 2011 1 TOPIC 5 ATOMIC PHYSICS Radioactivity or radioactive decay: 1. It is the process in which certain unstable atomic nuclei (plural
More informationUNCORRECTED PROOF. Table of Contents
00-Stabin-Prelims SNY001-Stabin (Typeset by spi publisher services, Delhi) vii of xvi June 1, 2007 17:15 Preface xiii Acknowledgments xv Chapter 1. Introduction to Health Physics 1 1.1 Definition of Health
More informationExperiment Radioactive Decay of 220 Rn and 232 Th Physics 2150 Experiment No. 10 University of Colorado
Experiment 10 1 Introduction Radioactive Decay of 220 Rn and 232 Th Physics 2150 Experiment No. 10 University of Colorado Some radioactive isotopes formed billions of years ago have half- lives so long
More informationThis document is a preview generated by EVS
INTERNATIONAL STANDARD ISO 13161 First edition 2011-10-01 Water quality Measurement of polonium 210 activity concentration in water by alpha spectrometry Qualité de l eau Mesurage de l activité du polonium
More informationGM Pancake Probe Victoreen Model D
Radiation Safety RS GM Pancake Probe Victoreen Model 489-110D! All purpose GM Pancake Probe detects alpha, beta, gamma, and x-ray radiations! Used in nuclear medicine, diagnostic x-ray, and geological
More informationSensitivity of the IRD whole-body counter for in vivo measurements in the case of accidental intakes
Sensitivity of the IRD whole-body counter for in vivo measurements in the case of accidental intakes B.M. Dantas, E.A. Lucena and A.L.A. Dantas Laboratório de Monitoração In Vivo Divisão de Dosimetria
More information2016 No. 410 (W. 128) WATER, ENGLAND AND WALES. The Water Supply (Water Quality) (Amendment) Regulations 2016
W E L S H S T A T U T O R Y I N S T R U M E N T S 2016 No. 410 (W. 128) WATER, ENGLAND AND WALES The Water Supply (Water Quality) (Amendment) Regulations 2016 Made - - - - 21 March 2016 Laid before Parliament
More informationb) Connect the oscilloscope across the potentiometer that is on the breadboard. Your instructor will draw the circuit diagram on the board.
Geiger Counter Experiments and The Statistics of Nuclear Decay Using a Geiger Mueller tube, there are a number of experiments we can do. In the classroom there are two different types of Geiger Counters:
More informationZX or X-A where X is chemical symbol of element. common unit: [unified mass unit = u] also known as [atomic mass unit = amu] or [Dalton = Da]
1 Part 5: Nuclear Physics 5.1. The Nucleus = atomic number = number of protons N = neutron number = number of neutrons = mass number = + N Representations: X or X- where X is chemical symbol of element
More informationRadiation Detection and Measurement
Radiation Detection and Measurement June 2008 Tom Lewellen Tkldog@u.washington.edu Types of radiation relevant to Nuclear Medicine Particle Symbol Mass (MeV/c 2 ) Charge Electron e-,! - 0.511-1 Positron
More informationTHE USE OF GAMMA RAY DATA TO DEFINE THE NATURAL RADIATION ENVIRONMENT
IAEA-TECDOC-566 THE USE OF GAMMA RAY DATA TO DEFINE THE NATURAL RADIATION ENVIRONMENT A TECHNICAL DOCUMENT ISSUED BY THE INTERNATIONAL ATOMIC ENERGY AGENCY, VIENNA, 1990 The SAEA does not normally maintain
More informationIntroduction to Radiological Sciences Neutron Detectors. Theory of operation. Types of detectors Source calibration Survey for Dose
Introduction to Radiological Sciences Neutron Detectors Neutron counting Theory of operation Slow neutrons Fast neutrons Types of detectors Source calibration Survey for Dose 2 Neutrons, what are they?
More informationISO Water quality Measurement of polonium 210 activity concentration in water by alpha spectrometry
INTERNATIONAL STANDARD ISO 13161 First edition 2011-10-01 Water quality Measurement of polonium 210 activity concentration in water by alpha spectrometry Qualité de l eau Mesurage de l activité du polonium
More informationRADON EQUILIBRIUM MEASUREMENT IN THE AIR *
RADON EQUILIBRIUM MEASUREMENT IN THE AIR * SOFIJA FORKAPIĆ, DUŠAN MRĐA, MIROSLAV VESKOVIĆ, NATAŠA TODOROVIĆ, KRISTINA BIKIT, JOVANA NIKOLOV, JAN HANSMAN University of Novi Sad, Faculty of Sciences, Department
More informationGamma-Spectrum Generator
1st Advanced Training Course ITCM with NUCLEONICA, Karlsruhe, Germany, 22-24 April, 2009 1 Gamma-Spectrum Generator A.N. Berlizov ITU - Institute for Transuranium Elements Karlsruhe - Germany http://itu.jrc.ec.europa.eu/
More informationActinides in Human Urine by Alpha Pulse Height Analysis (PHA)
Actinides in Human Urine by Alpha Pulse Height Analysis (PHA) Brian K. Culligan Fellow Scientist April 20, 2012 Health Physics Society Meeting Aiken SC SRNS-L4600-2012-00040 1 Outline Basic Principals
More informationMinimum Detectable and Maximum Missable Activities
and Maximum Missable The HPA Approach David Williams 18 May 2005 Centre for Radiation, Chemical and Environmental Hazards Radiation Protection Division formerly the National Radiological Protection Board
More informationRadioactive Decay of 220 Rn and 232 Th Physics 2150 Experiment No. 10 University of Colorado
Experiment 10 1 Introduction Radioactive Decay of 220 Rn and 232 Th Physics 2150 Experiment No. 10 University of Colorado Some radioactive isotopes formed billions of years ago have half-lives so long
More informationHigher -o-o-o- Past Paper questions o-o-o- 3.6 Radiation
Higher -o-o-o- Past Paper questions 2000-2010 -o-o-o- 3.6 Radiation 2000 Q29 Radium (Ra) decays to radon (Rn) by the emission of an alpha particle. Some energy is also released by this decay. The decay
More informationNATURAL ROCK SAMPLE. Performance Monitoring Accessory for the RAD7 User Manual
NATURAL ROCK SAMPLE Performance Monitoring Accessory for the RAD7 User Manual TABLE OF CONTENTS TABLE OF CONTENTS 2 1 INTRODUCTION 3 2 RAD7 RADON SENSITIVITY CHECK 4 2.1 Purge the RAD7 5 2.2 Hook up to
More informationRadiological Air Sampling NISP-RP-03
NUCLEAR INDUSTRY STANDARD PROCESS Radiological Protection NISP-RP-03 This is an industry document for standardizing radiation protection processes used by supplemental radiation protection technicians.
More informationModern Physics Laboratory (Physics 6180/7180)
Alpha Particle Spectroscopy Week of Jan. 18, 2010 Modern Physics Laboratory (Physics 6180/7180) The University of Toledo Instructor: Randy Ellingson Alpha Particle Spectroscopy Alpha particle source alpha
More informationAnswerIT! Atoms and isotopes. Structure of an atom Mass number, atomic number and isotopes Development of the model of the atom.
AnswerIT! Atoms and isotopes Structure of an atom Mass number, atomic number and isotopes Development of the model of the atom. Atoms and isotopes - AnswerIT 1. The diameter of an atom is about 0.000 000
More informationRadon-Thoron mixed atmosphere: realization, characterization, monitoring and use for detector calibration.
Radon-Thoron mixed atmosphere: realization, characterization, monitoring and use for detector calibration. Raffaele Buompane Dipartimento di Matematica e Fisica, Università degli Studi della Campania Luigi
More informationK 40 activity and Detector Efficiency
K 40 activity and Detector Efficiency Your goal in this experiment is to determine the activity of a salt substitute purchased in a local store. The salt subsitute is pure KCl. Most of the potassium found
More informationDesign and Use of an Interim Noble Gas Effluent Monitor at Columbia Generating Station
Design and Use of an Interim Noble Gas Effluent Monitor at Columbia Generating Station RETS-REMP & EPRI Groundwater Protection Workshop June 25-27th, 2013 Westminster, CO Eric L. Darois, CHP (RSCS) Jim
More informationGM Pancake Probe Victoreen Model D
Radiation Safety RS GM Pancake Probe Victoreen Model 489-110D All purpose GM Pancake Probe detects alpha, beta, gamma, and x-ray radiations Used in nuclear medicine, diagnostic x-ray, and geological and
More informationProduced Water Radioactivity
Produced Water Radioactivity Regulation Lax as Gas Wells Tainted Water Hits Rivers, Ian Urbina, NYT, 2/26/11 Tad Patzek, (Petroleum), UT Austin February 28, 2011, PGE Summary of Conclusions The total alpha
More informationPseudocoincidence Techniques
Pseudocoincidence Techniques Alfred Klett Berthold Technologies - Bad Wildbad Germany Air Monitoring Users Meeting AMUG Las Vegas/NV USA 3-6 May 2011 Overview Introduction Characteristics of Radioactive
More informationV.Schmidt, P. Hamel. Radon in the Living Environment, April 1999, Athens, Greece
Radon in the Living Environment, 39 MEASUREMENTS OF DEPOSITION VELOCITY OF RADON DECAY PRODUCTS FOR EXAMINATION OF THE CORRELATION BETWEEN AIR ACTIVITY CONCENTRATION OF RADON AND THE ACCUMULATED Po-0 SURFACE
More informationProblem Set 5 Solutions Prepared by Lisa Neef & Tony Key (last revision: 15 May 2007)
Problem Set 5 Solutions Prepared by Lisa Neef & Tony Key (last revision: 15 May 2007) 1. ISOTOPIC DILUTION. A) Mass of Exchangeable Calcium. Model. Here are all the things we are given in this problem:
More informationPersonal Dose Monitoring System
Personal Dose Monitoring System Kei Aoyama Osamu Ueda Takeshi Kawamura 1. Introduction The level of radiation safety control in the nuclear power field and at facilities that utilize radiation has become
More informationRADIATION-METER TM-91/TM-92
RADIATION-METER TM-91/TM-92 User s Manual EN 1 / 16 CONTENTS 1. introduction... 3 2. Safety Precaution... 4 3. Specification... 6 4. Identifying parts... 7 5. Operation Procedure... 8 6. Battery Replacement...
More informationIntroduction to neutron sources
LA-UR-15-28281 Introduction to neutron sources Tom McLean, LANL CSU neutron class Fort Collins, CO Oct. 27-29 2015 Introduction: talk outline Preamble Discussion (brief) of neutron source types: Spontaneous
More informationMitigation of External Radiation Exposures
Mitigation of External Radiation Exposures The three (3) major principles to assist with maintaining doses ALARA are :- 1) Time Minimizing the time of exposure directly reduces radiation dose. 2) Distance
More informationPractical Statistics for the Analytical Scientist Table of Contents
Practical Statistics for the Analytical Scientist Table of Contents Chapter 1 Introduction - Choosing the Correct Statistics 1.1 Introduction 1.2 Choosing the Right Statistical Procedures 1.2.1 Planning
More informationWM2011 Conference, February 27 March 3, 2011, Phoenix, AZ. Characterization of the Hanford 324 Building B Cell, Washington, USA
Characterization of the Hanford 34 Building B Cell, Washington, USA - 11081 Walter S. Josephson, Worley Parsons Polestar 601 Williams Boulevard, Suite 4A, Richland WA 9935 ABSTRACT The B hot cell in the
More informationRESPONSE OF A RADON CHARCOAL CANNISTER TO CLIMATIC AND RADON VARIATIONS IN THE INTE RADON CHAMBER. A. Vargas, X. Ortega, I.
RESPONSE OF A RADON CHARCOAL CANNISTER TO CLIMATIC AND RADON VARIATIONS IN THE INTE RADON CHAMBER A. Vargas, X. Ortega, I. Serrano Institut de Tècniques Energètiques (INTE), Universitat Politècnica de
More information8 th International Workshop on Radiation Safety at Synchrotron Radiation Sources
8 th International Workshop on Radiation Safety at Synchrotron Radiation Sources DESY Hamburg, 3 5 June 2015 Proposed material release plan for The decommissioning of the ESRF storage ring Paul Berkvens
More informationNORM and TENORM: Occurrence, Characterizing, Handling and Disposal
NORM and TENORM: Occurrence, Characterizing, Handling and Disposal Ionizing Radiation and Hazard Potential John R. Frazier, Ph.D. Certified Health Physicist May 12, 2014 Radiation Radiation is a word that
More informationM. Rogozina, M. Zhukovsky, A. Ekidin, M. Vasyanovich. Institute of Industrial Ecology, Ural Branch Russian Academy of Sciences
THORON PROGENY SIZE DISTRIBUTION IN MONAZITE STORAGE FACILITY M. Rogozina, M. Zhukovsky, A. Ekidin, M. Vasyanovich Institute of Industrial Ecology, Ural Branch Russian Academy of Sciences Thoron ( 220
More information章飞虹 ZHANG FeiHong INTERNATIONAL SCHOOL OF SUBNUCLEAR PHYSICS Ph.D. student from Institute of High Energy Physics, Beijing
章飞虹 ZHANG FeiHong zhangfh@ihep.ac.cn Ph.D. student from Institute of High Energy Physics, Beijing INTERNATIONAL SCHOOL OF SUBNUCLEAR PHYSICS 2012 Erice, 23 June 2 July 2012 1 Before Hunting Introduction
More informationActive Mode Calibration of the Combined Thermal Epithermal Neutron (CTEN) System
Active Mode Calibration of the Combined Thermal Epithermal Neutron (CTEN) System John M. Veilleux Los Alamos National Laboratory, Los Alamos, NM 87545, email: veilleux@lanl.gov October 2, 21 ABSTRACT The
More information2) Explain why the U-238 disintegration series shown in the graph ends with the nuclide Pb-206.
Name: 3156-1 - Page 1 Questions 1 and 2 refer to the following: A U-238 atom decays to a Pb-206 atom through a series of steps. Each point on the graph below represents a nuclide and each arrow represents
More informationChapter 7 Comparison of two independent samples
Chapter 7 Comparison of two independent samples 7.1 Introduction Population 1 µ σ 1 1 N 1 Sample 1 y s 1 1 n 1 Population µ σ N Sample y s n 1, : population means 1, : population standard deviations N
More informationFRAM V5.2. Plutonium and Uranium Isotopic Analysis Software
V5.2 Plutonium and Uranium Isotopic Analysis Software Advanced Isotopic Ratio Analysis Software for HPGe Gamma-Ray Spectra Analyzes Pu, and a wide variety of heterogeneous samples containing Pu, Am, U,
More informationA Level. A Level Physics. Radioactive decay (Answers) Edexcel. Name: Total Marks: /30
Visit http://www.mathsmadeeasy.co.uk/ for more fantastic resources. Edexcel A Level A Level Physics Radioactive decay (Answers) Name: Total Marks: /30 Maths Made Easy Complete Tuition Ltd 2017 1. Radioactive
More informationPhys 243 Lab 7: Radioactive Half-life
Phys 243 Lab 7: Radioactive Half-life Dr. Robert MacDonald The King s University College Winter 2013 Abstract In today s lab you ll be measuring the half-life of barium-137, a radioactive isotope of barium.
More informationSample Spectroscopy System Hardware
Semiconductor Detectors vs. Scintillator+PMT Detectors Semiconductors are emerging technology - Scint.PMT systems relatively unchanged in 50 years. NaI(Tl) excellent for single-photon, new scintillation
More informationRadiation Detection. 15 th Annual OSC Readiness Training Program.
Radiation Detection 15 th Annual OSC Readiness Training Program www.oscreadiness.org GM Detectors 15 th Annual OSC Readiness Training Program www.oscreadiness.org 1 A closer look 15 th Annual OSC Readiness
More information1. Introduction. Etim I.P. 1, William E. S. 2, Ekwe S.O. 3. Licensed Under Creative Commons Attribution CC BY
Alpha-Particle Spectroscopy and Ranges in Air Etim I.P. 1, William E. S. 2, Ekwe S.O. 3 1 Lecturer in the Department Of Physics, University of Calabar, Calabar, Nigeria 2 Concluded his Master program in
More informationRADIOACTIVITY IN THE AIR
RADIOACTIVITY IN THE AIR REFERENCES M. Sternheim and J. Kane, General Physics (See the discussion on Half Life) Evans, The Atomic Nucleus, pp. 518-522 Segre, Nuclei and Particles, p. 156 See HEALTH AND
More informationDetection efficiency of a BEGe detector using the Monte Carlo method and a comparison to other calibration methods. Abstract
Detection efficiency of a BEGe detector using the Monte Carlo method and a comparison to other calibration methods N. Stefanakis 1 1 GMA Gamma measurements and analyses e.k. PO Box 1611, 72706 Reutlingen,
More informationmolar mass = 0.239kg (1) mass needed = = kg (1) [7]
PhysicsAndMathsTutor.com 1 1. (a) (i) proton number 82 and nucleon number 214 (ii) Pb 2 (b) (i) kinetic energy [or electrostatic potential energy] (ii) m = 8.6 E 2 c 1 10 = 8 2 (10 ) = 9.6 10 0 kg [5]
More informationConcept Drift. Albert Bifet. March 2012
Concept Drift Albert Bifet March 2012 COMP423A/COMP523A Data Stream Mining Outline 1. Introduction 2. Stream Algorithmics 3. Concept drift 4. Evaluation 5. Classification 6. Ensemble Methods 7. Regression
More informationUnderstanding uncertainties associated with the 5128A RHapid-Cal Humidity Generator
Understanding uncertainties associated with the 5128A RHapid-Cal Humidity Generator Technical Note The Fluke Calibration 5128A RHapid-Cal Humidity Generator provides a portable, stable test environment
More informationChapter 4 Continuous Random Variables and Probability Distributions
Chapter 4 Continuous Random Variables and Probability Distributions Part 3: The Exponential Distribution and the Poisson process Section 4.8 The Exponential Distribution 1 / 21 Exponential Distribution
More information1220 QUANTULUS The Ultra Low Level Liquid Scintillation Spectrometer
1220 QUANTULUS The Ultra Low Level Liquid Scintillation Spectrometer PerkinElmer LAS (UK) Ltd, Chalfont Rd, Seer Green, Beaconsfield, Bucks HP9 2FX tel: 0800 896046 www.perkinelmer.com John Davies January
More informationDISTRIBUTION LIST To be filled out by Document Author or person requesting document deletion
DISTRIBUTION LIST To be filled out by Document Author or person requesting document deletion: Once approved, the new or revised document or the notice of deleted document(s) should be distributed to all
More informationAccuracy, Calibration, Type Testing and Traceability General. Peter Ambrosi
Accuracy, Calibration, Type Testing and Traceability General [Chapter 6 & 7 of RP 160] Peter Ambrosi EURADOS Training Course Lisbon, Portugal, 18-22 Mai Content Introduction - Aim of Measurement & type
More informationDevelopment of a Dosimetric System using Spectrometric Technique suitable for Operational Radiation Dose Measurements and Evaluation
Development of a Dosimetric System using Spectrometric Technique suitable for Operational Radiation Dose Measurements and Evaluation S. Moriuchi, M.Tsutsumi2 and K. Saito2 Nuclear safety technology Center,
More informationUncertainty in Measurement of Isotope Ratios by Multi-Collector Mass Spectrometry
1 IAEA-CN-184/168 Uncertainty in Measurement of Isotope Ratios by Multi-Collector Mass Spectrometry R. Williams Lawrence Livermore National Laboratory Livermore, California U.S.A. williams141@llnl.gov
More informationCalibration of Surface Contamination Monitors. UKAS Accredited Organisations Comparison. Final Report
Calibration of Surface Contamination Monitors UKAS Accredited Organisations 2007 Comparison Final Report 1 Normal expectations (ISO17025): Comparison participation at least annually Initial analysis of
More informationRefresher Radiation Safety Training Scott Jaqua, RSO
Refresher Radiation Safety Training Scott Jaqua, RSO 1 Section 1 Introduction 2 RSO Contact Information www.pdx.edu/environmental-health-safety Look for Research Safety Scott Jaqua, RSO 503-725-5269 phone
More informationKarlsruhe Chart of the Nuclides Nuclear Data. Zsolt Sóti Institute for Transuranium Elements - Karlsruhe Joint Research Centre
Karlsruhe Chart of the Nuclides Nuclear Data Zsolt Sóti Institute for Transuranium Elements - Karlsruhe Joint Research Centre Overview Nuclide Charts Karlsruhe Chart of Nuclides Electronic Nuclide Charts
More informationRenewed whole-body counting chamber in STUK
Renewed whole-body counting chamber in STUK Seminar DTU Nutech, Roskilde, Denmark Tiina Torvela, Tero Karhunen, Maarit Muikku Environmental Radiation Surveillance and Emergency Preparedness Whole-body
More informationAlpha spectrometry systems. A users perspective. George Ham. 26 th May Date Month Year
Alpha spectrometry systems A users perspective George Ham Date Month Year 26 th May 2005 Centre for Radiation, Chemical and Environmental Hazards Radiation Protection Division formerly the National Radiological
More informationThis document is a preview generated by EVS
INTERNATIONAL STANDARD ISO 11665-6 First edition 2012-07-15 Measurement of radioactivity in the environment Air: radon-222 Part 6: Spot measurement method of the activity concentration Mesurage de la radioactivité
More informationHalf Lives and Measuring Ages (read before coming to the Lab session)
Astronomy 170B1 Due: December 1 Worth 40 points Radioactivity and Age Determinations: How do we know that the Solar System is 4.5 billion years old? During this lab session you are going to witness how
More informationRapid method for determination of polonium isotopes in biological matter
Rapid method for determination of polonium isotopes in biological matter Merita Sinojmeri, Claudia Landstetter, Christian Katzlberger, Arno Achatz Radiation Protection Department Austrian Agency for Health
More informationEvidence of Solar Influences on Nuclear Decay Rates
Evidence of Solar Influences on Nuclear Decay Rates John Buncher Tom Gruenwald Jordan Heim Dan Javorsek Dennis Krause Anthony Lasenby Andrew Longman Jere Jenkins Ephraim Fischbach Peter Sturrock Ed Merritt
More informationK 40 activity and Detector Efficiency
K 40 activity and Detector Efficiency Your goal in this experiment is to determine the activity of a salt substitute purchased in a local store. The salt subsitute is pure KCl. Most of the potassium found
More informationHigh-energy calibration data for neutron activation analysis
Nuclear Analysis and Radiography Department High-energy calibration data for neutron activation analysis L. Szentmiklósi 1, Zs. Révay 2, B. Maróti 1, D. Párkányi 1, I. Harsányi 1 1 Nuclear Analysis and
More information11 Gamma Ray Energy and Absorption
11 Gamma Ray Energy and Absorption Before starting this laboratory, we must review the physiological effects and the proper use of the radioactive samples you will be using during the experiment. Physiological
More informationIntroduction. Principle of Operation
Introduction Ionizing radiation that is associated with radioactivity cannot be directly detected by our senses. Ionization is the process whereby the radiation has sufficient energy to strip electrons
More informationClearance Monitoring. Chris Goddard.
Clearance Monitoring Chris Goddard Outline What is Clearance? Clearance Limits around Europe Measurement techniques Plastic scintillators Long Range Alpha Detection Example systems Thermo SAM12 VF FRM-2
More informationRadioactive Waste Characterization and Management Post-Assessment Answer Key Page 1 of 7
Key Page 1 of 7 1. Uranium tailings from mining operations are typically left in piles to. a. decay b. dry c. be re-absorbed d. be shipped to a disposal site 2. is the most important radioactive component
More informationM E E T I n s t r u m e n t s G.m.b.H.
T a m a r i s k e n g a s s e 1 0 2 / 1 3 / 5 A - 1 2 2 0 V i e n n a, A U S T R I A T e l : + 4 3 1 2 8 5 4 5 7 2, F a x : + 4 3 1 2 8 3 6 4 2 9 E - m a i l : office@mateval.com www.mateval.com Portable
More informationPart 12- Physics Paper 1 Atomic Structure Knowledge Questions
Part 12- Physics Paper 1 Atomic Structure Knowledge Questions Internal energy and energy transfers Internal energy and energy transfers Changes of state and the particle model Particle Model of Matter
More informationRadiation Protection Training Manual & Study Guide. Jump to the Table of Contents
Radiation Protection Training Manual & Study Guide Jump to the Table of Contents December 1986 Revised 1994 Radiation Safety Office Radiation Protection Training Course Course Outline Time Lecture Topic
More informationThe Role of Reference Materials in the Measurement of Terrestrial Radionuclides
Terrestrial Radionuclides in Environment International Conference on Environmental Protection 16-18 May 2012, Veszprém (Hungary) The Role of Reference Materials in the Measurement of Terrestrial Radionuclides
More information